openstack
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diskimage-builder
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diskimage-builder/diskimage_builder/elements/ramdisk
History
Jesse Keating 84d10dce57 Remove use of 'which'. 
Instead, either use the bash built-in of type to ensure it exists. Since
which is an external dep, things can fail oddly in a constrained
environment.

Also add a dib-lint test for this.

Change-Id: I645029f5b5bfe1198c89ce10fd3246be8636e8af
Signed-off-by: Jesse Keating <omgjlk@us.ibm.com>
 		2017-05-19 12:43:36 -07:00
..
binary-deps.d Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
init.d Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
install.d Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
post-install.d Remove use of 'which'. 2017-05-19 12:43:36 -07:00
README.rst Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
element-deps Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00
pkg-map Move elements & lib relative to diskimage_builder package 2016-11-01 17:27:41 -07:00

README.rst

ramdisk

This is the ramdisk element.

Almost any user building a ramdisk will want to include this in their build, as it triggers many of the vital functionality from the basic diskimage-builder libraries (such as init script aggregation, busybox population, etc).

An example of when one might want to use this toolchain to build a ramdisk would be the initial deployment of baremetal nodes in a TripleO setup. Various tools and scripts need to be injected into a ramdisk that will fetch and apply a machine image to local disks. That tooling/scripting customisation can be easily applied in a repeatable and automatable way, using this element.

NOTE: ramdisks require 1GB minimum memory on the machines they are booting.

See the top-level README.md of the project, for more information about the mechanisms available to a ramdisk element.